52 files changed, 173 insertions, 412 deletions

diff --git a/apps/plugins/bench_mem_jpeg.c b/apps/plugins/bench_mem_jpeg.c
index 4e24f2a405..184eb0f1c8 100644
--- a/apps/plugins/bench_mem_jpeg.c
+++ b/apps/plugins/bench_mem_jpeg.c
@@ -54,14 +54,12 @@ const struct custom_format format_null = {
     .get_size = get_size_null
 };
 
-static char output_buf[256];
 static int output_y = 0;
 static int font_h;
 
 #define lcd_printf(...) \
 do { \
-    rb->snprintf(output_buf, sizeof(output_buf), __VA_ARGS__); \
-    rb->lcd_putsxy(0, output_y, output_buf); \
+    rb->lcd_putsxyf(0, output_y, __VA_ARGS__); \
     rb->lcd_update_rect(0, output_y, LCD_WIDTH, font_h); \
     output_y += font_h; \
 } while (0)
diff --git a/apps/plugins/bench_scaler.c b/apps/plugins/bench_scaler.c
index 5db2987ec7..dc794e67f2 100644
--- a/apps/plugins/bench_scaler.c
+++ b/apps/plugins/bench_scaler.c
@@ -29,7 +29,6 @@ static unsigned char output;
 static int output_y = 0;
 static int font_h;
 static unsigned char *plugin_buf;
-char output_buf[256];
 struct img_part part;
 
 /* a null output plugin to save memory and better isolate scale cost */
@@ -77,8 +76,7 @@ const struct custom_format format_null = {
 
 #define lcd_printf(...) \
 do { \
-    rb->snprintf(output_buf, sizeof(output_buf), __VA_ARGS__); \
-    rb->lcd_putsxy(0, output_y, output_buf); \
+    rb->lcd_putsxyf(0, output_y, __VA_ARGS__); \
     rb->lcd_update_rect(0, output_y, LCD_WIDTH, font_h); \
     output_y += font_h; \
 } while (0)
diff --git a/apps/plugins/blackjack.c b/apps/plugins/blackjack.c
index 8b28b815b8..42f73ff47c 100644
--- a/apps/plugins/blackjack.c
+++ b/apps/plugins/blackjack.c
@@ -946,7 +946,6 @@ static signed int blackjack_get_amount(char message[20], signed int lower_limit,
                                        signed int upper_limit,
                                        signed int start) {
     int button;
-    char str[9];
     bool breakout = false, changed = false;
     unsigned int w, h;
     signed int amount;
@@ -968,8 +967,7 @@ static signed int blackjack_get_amount(char message[20], signed int lower_limit,
 #if LCD_HEIGHT <= 64
     rb->lcd_clear_display();
     rb->lcd_puts(0, 1, message);
-    rb->snprintf(str, 9, "$%d", amount);
-    rb->lcd_puts(0, 2, str);
+    rb->lcd_putsf(0, 2, "$%d", amount);
     rb->lcd_puts(0, 3, "RIGHT: +1");
     rb->lcd_puts(0, 4, "LEFT:  -1");
     rb->lcd_puts(0, 5, "UP:   +10");
@@ -983,8 +981,7 @@ static signed int blackjack_get_amount(char message[20], signed int lower_limit,
     rb->lcd_drawrect(LCD_WIDTH/2 - 9*w - 1, LCD_HEIGHT/2 - 4*h - 3,
                      37*w / 2, 8*h -3);
     rb->lcd_putsxy(LCD_WIDTH/2 - 9*w, LCD_HEIGHT/2 - 4*h - 1, message);
-    rb->snprintf(str, 9, "$%d", amount);
-    rb->lcd_putsxy(LCD_WIDTH/2 - 9*w, LCD_HEIGHT/2 - 3*h, str);
+    rb->lcd_putsxyf(LCD_WIDTH/2 - 9*w, LCD_HEIGHT/2 - 3*h, "$%d", amount);
 #if (CONFIG_KEYPAD == IPOD_4G_PAD) || \
       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
       (CONFIG_KEYPAD == IPOD_1G2G_PAD) || \
@@ -1063,15 +1060,14 @@ static signed int blackjack_get_amount(char message[20], signed int lower_limit,
         }
 
         if(changed) {
-            rb->snprintf(str, 9, "$%d", amount);
 #if LCD_HEIGHT <= 64
-            rb->lcd_puts(0, 2, str);
+            rb->lcd_putsf(0, 2, "$%d", amount);
             rb->lcd_update();
 #else
             rb->lcd_set_drawmode(DRMODE_BG+DRMODE_INVERSEVID);
             rb->lcd_fillrect(LCD_WIDTH/2 - 9*w, LCD_HEIGHT/2 - 3*h, 5*w, h);
             rb->lcd_set_drawmode(DRMODE_SOLID);
-            rb->lcd_putsxy(LCD_WIDTH/2 - 9*w, LCD_HEIGHT/2 - 3*h, str);
+            rb->lcd_putsxyf(LCD_WIDTH/2 - 9*w, LCD_HEIGHT/2 - 3*h, "$%d", amount);
             rb->lcd_update_rect(LCD_WIDTH/2 - 9*w, LCD_HEIGHT/2 - 3*h, 5*w, h);
 #endif
             changed = false;
diff --git a/apps/plugins/bounce.c b/apps/plugins/bounce.c
index 1ee5b1eaeb..abc551ff0a 100644
--- a/apps/plugins/bounce.c
+++ b/apps/plugins/bounce.c
@@ -582,7 +582,6 @@ static int loopit(void)
 
     int show=0;
     int timeout=0;
-    char buffer[30];
 
     rb->lcd_clear_display();
     while(1)
@@ -628,9 +627,8 @@ static int loopit(void)
                       show=NUM_LAST-1;
                   break;
             }
-            rb->snprintf(buffer, 30, "%s: %d",
+            rb->lcd_putsxyf(0, LCD_HEIGHT -  8, "%s: %d",
                          values[show].what, values[show].num);
-            rb->lcd_putsxy(0, LCD_HEIGHT -  8, (unsigned char *)buffer);
             timeout--;
         }
         for(i=0, yy=y, xx=x;
diff --git a/apps/plugins/brickmania.c b/apps/plugins/brickmania.c
index 50ceaa7557..2a025d750b 100644
--- a/apps/plugins/brickmania.c
+++ b/apps/plugins/brickmania.c
@@ -1573,11 +1573,11 @@ static int brickmania_game_loop(void)
 
             /* write life num */
 #if (LCD_WIDTH == 112) && (LCD_HEIGHT == 64)
-            rb->snprintf(s, sizeof(s), "L:%d", life);
+    #define LIFE_STR "L:%d"
 #else
-            rb->snprintf(s, sizeof(s), "Life: %d", life);
+    #define LIFE_STR "Life: %d"
 #endif
-            rb->lcd_putsxy(0, 0, s);
+            rb->lcd_putsxyf(0, 0, LIFE_STR, life);
 
 #if (LCD_WIDTH == 112) && (LCD_HEIGHT == 64)
             rb->snprintf(s, sizeof(s), "L%d", level+1);
diff --git a/apps/plugins/calendar.c b/apps/plugins/calendar.c
index 32d4501920..8f25a7adc7 100644
--- a/apps/plugins/calendar.c
+++ b/apps/plugins/calendar.c
@@ -451,7 +451,6 @@ static void draw_calendar(struct shown *shown)
     int w, h;
     int x, y, pos, days_per_month, j;
     int wday;
-    char buffer[12];
     const char *monthname[] = {
         "Jan", "Feb", "Mar", "Apr", "May", "Jun",
         "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
@@ -472,10 +471,6 @@ static void draw_calendar(struct shown *shown)
     y = Y_OFFSET + h;
     for (j = 1; j <= days_per_month; j++)
     {
-        if ( (day_has_memo[j]) || (wday_has_memo[wday]) )
-            rb->snprintf(buffer, 4, "%02d.", j);
-        else
-            rb->snprintf(buffer, 4, "%02d", j);
         if (shown->mday == j)
         {
             rb->lcd_set_drawmode(DRMODE_SOLID);
@@ -487,7 +482,10 @@ static void draw_calendar(struct shown *shown)
         {
             rb->lcd_set_drawmode(DRMODE_SOLID);
         }
-        rb->lcd_putsxy(x, y, buffer);
+        if ( (day_has_memo[j]) || (wday_has_memo[wday]) )
+            rb->lcd_putsxyf(x, y, "%02d.", j);
+        else
+            rb->lcd_putsxyf(x, y, "%02d", j);
         x += CELL_WIDTH;
         wday++;
         if (wday >= 7)
@@ -504,9 +502,8 @@ static void draw_calendar(struct shown *shown)
     rb->lcd_set_drawmode(DRMODE_SOLID);
     rb->lcd_vline(LCD_WIDTH-w*8-10, LCD_HEIGHT-h-3, LCD_HEIGHT-1);
     rb->lcd_hline(LCD_WIDTH-w*8-10, LCD_WIDTH-1, LCD_HEIGHT-h-3);
-    rb->snprintf(buffer, sizeof(buffer), "%s %04d",
+    rb->lcd_putsxyf(LCD_WIDTH-w*8-8, LCD_HEIGHT-h-1, "%s %04d",
                  monthname[shown->mon-1], shown->year);
-    rb->lcd_putsxy(LCD_WIDTH-w*8-8, LCD_HEIGHT-h-1, buffer);
     rb->lcd_update();
 }
 
diff --git a/apps/plugins/clix.c b/apps/plugins/clix.c
index 0bdf693f54..9eda97a1d9 100644
--- a/apps/plugins/clix.c
+++ b/apps/plugins/clix.c
@@ -408,23 +408,19 @@ static void clix_draw_cell(struct clix_game_state_t* state, const int x, const i
 static void clix_draw(struct clix_game_state_t* state)
 {
     int i,j;
-    char str[30];
 
     /* Clear screen */
     rb->lcd_clear_display();
     rb->lcd_set_foreground( LCD_WHITE);
 
     rb->lcd_putsxy( MARGIN, MARGIN, "Score:");
-    rb->snprintf( str, sizeof(str), "%d", state->score);
-    rb->lcd_putsxy( 43, MARGIN, str);
+    rb->lcd_putsxyf( 43, MARGIN, "%d", state->score);
 #if LCD_WIDTH <= 100
     rb->lcd_putsxy( 75, MARGIN, "L:");
-    rb->snprintf( str, sizeof(str), "%d", state->level);
-    rb->lcd_putsxy( 90, MARGIN, str);
+    rb->lcd_putsxyf( 90, MARGIN, "%d", state->level);
 #else
     rb->lcd_putsxy( 75, MARGIN, "Level:");
-    rb->snprintf( str, sizeof(str), "%d", state->level);
-    rb->lcd_putsxy( 113, MARGIN, str);
+    rb->lcd_putsxyf( 113, MARGIN, "%d", state->level);
 #endif
     for( i = 0; i < BOARD_WIDTH; ++i)
     {
diff --git a/apps/plugins/codebuster.c b/apps/plugins/codebuster.c
index 1169f265c3..ca36d5d01b 100644
--- a/apps/plugins/codebuster.c
+++ b/apps/plugins/codebuster.c
@@ -174,7 +174,7 @@ static void draw_piece(int x, int y, int w, int h, int color_id, bool emph) {
 
     if (settings.labeling && color_id >= 0) {
         char text[2];
-        rb->snprintf(text, 2, "%d", color_id);
+        rb->snprintf(text, sizeof(text), "%d", color_id);
 
         int fw, fh; rb->font_getstringsize(text, &fw, &fh, FONT_SYSFIXED);
         rb->lcd_putsxy(x + get_margin(fw, w), y + get_margin(fh, h), text);
diff --git a/apps/plugins/credits.c b/apps/plugins/credits.c
index a05b44c20d..8f86c7626b 100644
--- a/apps/plugins/credits.c
+++ b/apps/plugins/credits.c
@@ -331,10 +331,8 @@ static void roll_credits(void)
             rb->lcd_putsxy(CREDITS_TARGETPOS, 0, elapsednames);
             
             for(i=0; i<NUM_VISIBLE_LINES; i++)
-            {
-                rb->snprintf(name, sizeof(name), "%s", credits[j+i]);
-                rb->lcd_putsxy(0, font_h*(i+1), name);
-            }
+                rb->lcd_putsxyf(0, font_h*(i+1), "%s", credits[j+i]);
+
             rb->lcd_update();
 
             rb->yield();
diff --git a/apps/plugins/cube.c b/apps/plugins/cube.c
index 7dec822d56..88036ed661 100644
--- a/apps/plugins/cube.c
+++ b/apps/plugins/cube.c
@@ -701,10 +701,9 @@ enum plugin_status plugin_start(const void* parameter)
             if (t_disp == DISP_TIME)
             {
                 rb->lcd_puts(5, 0, axes[curr].label);
-                rb->snprintf(buffer, sizeof(buffer), "%d %c",
+                rb->lcd_putsf(5, 1, "%d %c",
                              paused ? axes[curr].angle : axes[curr].speed,
                              highspeed ? 'H' : ' ');
-                rb->lcd_puts(5, 1, buffer);
             }
             t_disp--;
             if (t_disp == 0)
diff --git a/apps/plugins/disktidy.c b/apps/plugins/disktidy.c
index d83ecf4312..cc883fea9c 100644
--- a/apps/plugins/disktidy.c
+++ b/apps/plugins/disktidy.c
@@ -160,15 +160,12 @@ bool tidy_remove_item(char *item, int attr)
 
 void tidy_lcd_status(const char *name, int *removed)
 {
-    char text[24]; /* "Cleaned up nnnnn items" */
-
     /* display status text */
     rb->lcd_clear_display();
     rb->lcd_puts(0, 0, "Working ...");
     rb->lcd_puts(0, 1, name);
-    rb->snprintf(text, 24, "Cleaned up %d items", *removed);
 #ifdef HAVE_LCD_BITMAP
-    rb->lcd_puts(0, 2, text);
+    rb->lcd_putsf(0, 2, "Cleaned up %d items", *removed);
 #endif
     rb->lcd_update();
 }
diff --git a/apps/plugins/firmware_flash.c b/apps/plugins/firmware_flash.c
index 02c4098ec1..5c310e028d 100644
--- a/apps/plugins/firmware_flash.c
+++ b/apps/plugins/firmware_flash.c
@@ -556,8 +556,6 @@ int WaitForButton(void)
 /* helper for DoUserDialog() */
 void ShowFlashInfo(tFlashInfo* pInfo)
 {
-    char buf[32];
-    
     if (!pInfo->manufacturer)
     {
         rb->lcd_puts(0, 0, "Flash: M=?? D=??");
@@ -565,16 +563,14 @@ void ShowFlashInfo(tFlashInfo* pInfo)
     }
     else
     {
-        rb->snprintf(buf, sizeof(buf), "Flash: M=%02x D=%02x",
+        rb->lcd_putsf(0, 0, "Flash: M=%02x D=%02x",
             pInfo->manufacturer, pInfo->id);
-        rb->lcd_puts(0, 0, buf);
         
         
         if (pInfo->size)
         {
             rb->lcd_puts(0, 1, pInfo->name);
-            rb->snprintf(buf, sizeof(buf), "Size: %d KB", pInfo->size / 1024);
-            rb->lcd_puts(0, 2, buf);
+            rb->lcd_puts(0, 2, "Size: %d KB", pInfo->size / 1024);
         }
         else
         {
@@ -591,7 +587,6 @@ void ShowFlashInfo(tFlashInfo* pInfo)
 void DoUserDialog(char* filename)
 {
     tFlashInfo FlashInfo;
-    char buf[32];
     char default_filename[32];
     int button;
     int rc; /* generic return code */
@@ -761,8 +756,7 @@ void DoUserDialog(char* filename)
         rb->lcd_clear_display();
         rb->lcd_puts(0, 0, "Panic:");
         rb->lcd_puts(0, 1, "Programming fail!");
-        rb->snprintf(buf, sizeof(buf), "%d errors", rc);
-        rb->lcd_puts(0, 2, buf);
+        rb->lcd_putsf(0, 2, "%d errors", rc);
         rb->lcd_update();
         button = WaitForButton();
     }
@@ -782,8 +776,7 @@ void DoUserDialog(char* filename)
     {
         rb->lcd_puts(0, 0, "Panic:");
         rb->lcd_puts(0, 1, "Verify fail!");
-        rb->snprintf(buf, sizeof(buf), "%d errors", rc);
-        rb->lcd_puts(0, 2, buf);
+        rb->lcd_putsf(0, 2, "%d errors", rc);
     }
     rb->lcd_puts(0, 7, "Any key to exit");
     rb->lcd_update();
diff --git a/apps/plugins/flipit.c b/apps/plugins/flipit.c
index 44ad011a64..2bc4a1ff97 100644
--- a/apps/plugins/flipit.c
+++ b/apps/plugins/flipit.c
@@ -496,11 +496,8 @@ static void draw_cursor(void)
 /* draw the info panel ... duh */
 static void draw_info_panel(void)
 {
-    char s[16];
-    
     rb->lcd_puts( 6, 0, "Flips" );
-    rb->snprintf( s, sizeof(s), "%d", moves );
-    rb->lcd_puts( 6, 1, s );
+    rb->lcd_putsf( 6, 1, "%d", moves );
 }
 
 #endif /* LCD */
diff --git a/apps/plugins/greyscale.c b/apps/plugins/greyscale.c
index 33254439b6..00699715f7 100644
--- a/apps/plugins/greyscale.c
+++ b/apps/plugins/greyscale.c
@@ -120,7 +120,6 @@
 /******************************* Globals ***********************************/
 
 GREY_INFO_STRUCT
-static char pbuf[32];         /* global printf buffer */
 static unsigned char *gbuf;
 static size_t gbuf_size = 0;
 
@@ -298,9 +297,7 @@ int main(void)
 
     time = *rb->current_tick - time;  /* end time measurement */
 
-    rb->snprintf(pbuf, sizeof(pbuf), "Shades: 129, %d.%02ds", 
-                 time / 100, time % 100);
-    rb->lcd_puts(0, 0, pbuf);
+    rb->lcd_putsf(0, 0, "Shades: 129, %d.%02ds", time / 100, time % 100);
     grey_deferred_lcd_update();       /* schedule an lcd_update() */
 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
     rb->cpu_boost(false);
diff --git a/apps/plugins/imageviewer/bmp/bmp.c b/apps/plugins/imageviewer/bmp/bmp.c
index 6b5c4b1759..b96577dbed 100644
--- a/apps/plugins/imageviewer/bmp/bmp.c
+++ b/apps/plugins/imageviewer/bmp/bmp.c
@@ -209,11 +209,8 @@ int load_image(char *filename, struct image_info *info,
     if (!running_slideshow)
     {
         rb->lcd_puts(0, 0, rb->strrchr(filename,'/')+1);
-        rb->lcd_update();
-
-        rb->snprintf(print, sizeof(print), "loading %dx%d%s",
+        rb->lcd_putsf(0, 1, "loading %dx%d%s",
                         bmp.width, bmp.height, ds == 1?"":"(resize on load)");
-        rb->lcd_puts(0, 1, print);
         rb->lcd_update();
     }
 
@@ -260,8 +257,7 @@ int load_image(char *filename, struct image_info *info,
 
     if (!running_slideshow)
     {
-        rb->snprintf(print, sizeof(print), "image %dx%d", bmp.width, bmp.height);
-        rb->lcd_puts(0, 2, print);
+        rb->lcd_putsf(0, 2, "image %dx%d", bmp.width, bmp.height);
         rb->lcd_update();
     }
 
@@ -308,9 +304,7 @@ int get_image(struct image_info *info, int ds)
 
         if (!running_slideshow)
         {
-            rb->snprintf(print, sizeof(print), "resizing %d*%d",
-                            info->width, info->height);
-            rb->lcd_puts(0, 3, print);
+            rb->lcd_putsf(0, 3, "resizing %d*%d", info->width, info->height);
             rb->lcd_update();
         }
 
diff --git a/apps/plugins/imageviewer/imageviewer.c b/apps/plugins/imageviewer/imageviewer.c
index e581407290..eb1ce498a1 100644
--- a/apps/plugins/imageviewer/imageviewer.c
+++ b/apps/plugins/imageviewer/imageviewer.c
@@ -97,7 +97,6 @@ static fb_data rgb_linebuf[LCD_WIDTH];  /* Line buffer for scrolling when
 #endif
 
 /* my memory pool (from the mp3 buffer) */
-static char print[32]; /* use a common snprintf() buffer */
 /* the remaining free part of the buffer for loaded+resized images */
 static unsigned char* buf;
 static size_t buf_size;
@@ -777,9 +776,7 @@ static int load_and_show(char* filename, struct image_info *info)
 
         if(!running_slideshow)
         {
-            rb->snprintf(print, sizeof(print), "showing %dx%d",
-                            info->width, info->height);
-            rb->lcd_puts(0, 3, print);
+            rb->lcd_putsf(0, 3, "showing %dx%d", info->width, info->height);
             rb->lcd_update();
         }
 
diff --git a/apps/plugins/imageviewer/jpeg/jpeg.c b/apps/plugins/imageviewer/jpeg/jpeg.c
index 95e493e7ee..5f69cc7f51 100644
--- a/apps/plugins/imageviewer/jpeg/jpeg.c
+++ b/apps/plugins/imageviewer/jpeg/jpeg.c
@@ -157,10 +157,7 @@ int load_image(char *filename, struct image_info *info,
     if(!running_slideshow)
     {
         rb->lcd_puts(0, 0, rb->strrchr(filename,'/')+1);
-        rb->lcd_update();
-
-        rb->snprintf(print, sizeof(print), "loading %d bytes", filesize);
-        rb->lcd_puts(0, 1, print);
+        rb->lcd_putsf(0, 1, "loading %d bytes", filesize);
         rb->lcd_update();
     }
 
@@ -195,9 +192,7 @@ int load_image(char *filename, struct image_info *info,
 
     if(!running_slideshow)
     {
-        rb->snprintf(print, sizeof(print), "image %dx%d",
-                        p_jpg->x_size, p_jpg->y_size);
-        rb->lcd_puts(0, 2, print);
+        rb->lcd_putsf(0, 2, "image %dx%d", p_jpg->x_size, p_jpg->y_size);
         rb->lcd_update();
     }
 
@@ -269,9 +264,7 @@ int get_image(struct image_info *info, int ds)
 
     if(!running_slideshow)
     {
-        rb->snprintf(print, sizeof(print), "decoding %d*%d",
-                        info->width, info->height);
-        rb->lcd_puts(0, 3, print);
+        rb->lcd_putsf(0, 3, "decoding %d*%d", info->width, info->height);
         rb->lcd_update();
     }
 
diff --git a/apps/plugins/imageviewer/png/png.c b/apps/plugins/imageviewer/png/png.c
index 8bd1b241f3..46430607ea 100644
--- a/apps/plugins/imageviewer/png/png.c
+++ b/apps/plugins/imageviewer/png/png.c
@@ -1359,8 +1359,7 @@ int load_image(char *filename, struct image_info *info,
 
     } else {
         if (!running_slideshow) {
-            rb->snprintf(print, sizeof(print), "loading %lu bytes", (unsigned long)image_size);
-            rb->lcd_puts(0, 1, print);
+            rb->lcd_putsf(0, 1, "loading %zu bytes", image_size);
             rb->lcd_update();
         }
 
@@ -1388,14 +1387,10 @@ int load_image(char *filename, struct image_info *info,
         if (!decoder->error) {
 
             if (!running_slideshow) {
-                rb->snprintf(print, sizeof(print), "image %dx%d",
+                rb->lcd_putsf(0, 2, "image %dx%d",
                              decoder->infoPng.width, decoder->infoPng.height);
-                rb->lcd_puts(0, 2, print);
-                rb->lcd_update();
-
-                rb->snprintf(print, sizeof(print), "decoding %d*%d",
+                rb->lcd_putsf(0, 3, "decoding %d*%d",
                              decoder->infoPng.width, decoder->infoPng.height);
-                rb->lcd_puts(0, 3, print);
                 rb->lcd_update();
             }
 
@@ -1481,9 +1476,7 @@ int get_image(struct image_info *info, int ds)
     if (ds > 1) {
         if (!running_slideshow)
         {
-            rb->snprintf(print, sizeof(print), "resizing %d*%d",
-                         info->width, info->height);
-            rb->lcd_puts(0, 3, print);
+            rb->lcd_putsf(0, 3, "resizing %d*%d", info->width, info->height);
             rb->lcd_update();
         }
         struct bitmap bmp_src, bmp_dst;
diff --git a/apps/plugins/iriver_flash.c b/apps/plugins/iriver_flash.c
index b744eac70f..67ea090cf2 100644
--- a/apps/plugins/iriver_flash.c
+++ b/apps/plugins/iriver_flash.c
@@ -187,8 +187,6 @@ int wait_for_button(void)
 /* helper for DoUserDialog() */
 void ShowFlashInfo(struct flash_info* pInfo)
 {
-    char buf[32];
-    
     if (!pInfo->manufacturer)
     {
         rb->lcd_puts(0, 0, "Flash: M=?? D=??");
@@ -196,16 +194,14 @@ void ShowFlashInfo(struct flash_info* pInfo)
     }
     else
     {
-        rb->snprintf(buf, sizeof(buf), "Flash: M=%02x D=%02x",
+        rb->lcd_putsf(0, 0, "Flash: M=%02x D=%02x",
             pInfo->manufacturer, pInfo->id);
-        rb->lcd_puts(0, 0, buf);
         
         
         if (pInfo->size)
         {
             rb->lcd_puts(0, 1, pInfo->name);
-            rb->snprintf(buf, sizeof(buf), "Size: %d KB", pInfo->size / 1024);
-            rb->lcd_puts(0, 2, buf);
+            rb->lcd_putsf(0, 2, "Size: %d KB", pInfo->size / 1024);
         }
         else
         {
@@ -235,11 +231,9 @@ bool show_info(void)
 
 bool confirm(const char *msg)
 {
-    char buf[128];
     bool ret;
     
-    rb->snprintf(buf, sizeof buf, "%s ([PLAY] to CONFIRM)", msg);
-    rb->splash(0, buf);
+    rb->splashf(0, "%s ([PLAY] to CONFIRM)", msg);
     
     ret = (wait_for_button() == BUTTON_ON);
     show_info();
@@ -338,7 +332,6 @@ static int get_section_address(int section)
 int flash_rockbox(const char *filename, int section)
 {
     struct flash_header hdr;
-    char buf[64];
     int pos, i, len, rc;
     unsigned long checksum, sum;
     unsigned char *p8;
@@ -378,9 +371,8 @@ int flash_rockbox(const char *filename, int section)
 
         if (pos+sizeof(struct flash_header) != *p32)
         {
-            rb->snprintf(buf, sizeof(buf), "Incorrect relocation: 0x%08lx/0x%08lx",
+            rb->splashf(HZ*10, "Incorrect relocation: 0x%08lx/0x%08lx",
                          *p32, pos+sizeof(struct flash_header));
-            rb->splash(HZ*10, buf);
             return -1;
         }
         
@@ -393,9 +385,7 @@ int flash_rockbox(const char *filename, int section)
         if (i + pos < SEC_SIZE)
             return -1;
         
-        rb->snprintf(buf, sizeof(buf), "Erasing...  %d%%", 
-                     (i+SEC_SIZE)*100/len);
-        rb->lcd_puts(0, 3, buf);
+        rb->lcd_putsf(0, 3, "Erasing...  %d%%", (i+SEC_SIZE)*100/len);
         rb->lcd_update();
         
         rc = cfi_erase_sector(FB + (i + pos)/2);
@@ -408,8 +398,7 @@ int flash_rockbox(const char *filename, int section)
     // rb->strncpy(hdr.version, rb->rbversion , sizeof(hdr.version)-1);
     p16 = (uint16_t *)&hdr;
     
-    rb->snprintf(buf, sizeof(buf), "Programming...");
-    rb->lcd_puts(0, 4, buf);
+    rb->lcd_puts(0, 4, "Programming...");
     rb->lcd_update();
     
     pos = get_section_address(section)/2;
@@ -424,9 +413,7 @@ int flash_rockbox(const char *filename, int section)
     {
         if (i % SEC_SIZE == 0)
         {
-            rb->snprintf(buf, sizeof(buf), "Programming...  %d%%",
-                         (i+1)*100/(len/2));
-            rb->lcd_puts(0, 4, buf);
+            rb->lcd_putsf(0, 4, "Programming...  %d%%", (i+1)*100/(len/2));
             rb->lcd_update();
         }
         
@@ -434,8 +421,7 @@ int flash_rockbox(const char *filename, int section)
     }
     
     /* Verify */
-    rb->snprintf(buf, sizeof(buf), "Verifying");
-    rb->lcd_puts(0, 5, buf);
+    rb->lcd_puts(0, 5, "Verifying");
     rb->lcd_update();
     
     p8 = (char *)get_section_address(section);
@@ -560,13 +546,10 @@ int flash_bootloader(const char *filename)
 int flash_original_fw(int len)
 {
     unsigned char reset_vector[8];
-    char buf[32];
     int pos, i, rc;
     unsigned char *p8;
     uint16_t *p16;
     
-    (void)buf;
-    
     rb->lcd_puts(0, 3, "Critical section...");
     rb->lcd_update();
 
@@ -586,13 +569,11 @@ int flash_original_fw(int len)
     for (i = 1; i < BOOTLOADER_ERASEGUARD && (i-1)*4096 < len; i++)
     {
         rc = cfi_erase_sector(FB + (SEC_SIZE/2) * i);
-        rb->snprintf(buf, sizeof(buf), "Erase: 0x%03x  (%d)", i, rc);
-        rb->lcd_puts(0, 5, buf);
+        rb->lcd_putsf(0, 5, "Erase: 0x%03x  (%d)", i, rc);
         rb->lcd_update();
     }
     
-    rb->snprintf(buf, sizeof(buf), "Programming");
-    rb->lcd_puts(0, 6, buf);
+    rb->lcd_puts(0, 6, "Programming");
     rb->lcd_update();
     
     pos = 0x00000008/2;
@@ -600,8 +581,7 @@ int flash_original_fw(int len)
     for (i = 0; i < len/2 && pos + i < (BOOTLOADER_ENTRYPOINT/2); i++)
         cfi_program_word(FB + pos + i, p16[i]);
     
-    rb->snprintf(buf, sizeof(buf), "Verifying");
-    rb->lcd_puts(0, 7, buf);
+    rb->lcd_puts(0, 7, "Verifying");
     rb->lcd_update();
     
     /* Verify reset vectors. */
@@ -623,8 +603,7 @@ int flash_original_fw(int len)
         if (p8[i] != audiobuf[i])
         {
             rb->splash(HZ*3, "Verify failed!");
-            rb->snprintf(buf, sizeof buf, "at: 0x%08x", i);
-            rb->splash(HZ*10, buf);
+            rb->splashf(HZ*10, "at: 0x%08x", i);
             return -5;
         }
     }
diff --git a/apps/plugins/jewels.c b/apps/plugins/jewels.c
index c636619b43..fc20c674aa 100644
--- a/apps/plugins/jewels.c
+++ b/apps/plugins/jewels.c
@@ -629,8 +629,7 @@ static void jewels_drawboard(struct game_context* bj) {
 #endif
     
     /* print text */
-    rb->snprintf(str, 10, "%s %d", title, bj->level);
-    rb->lcd_putsxy(1, LCD_HEIGHT-10, str);
+    rb->lcd_putsxyf(1, LCD_HEIGHT-10, "%s %d", title, bj->level);
     
     if (bj->type == GAME_TYPE_NORMAL) {
         rb->snprintf(str, 6, "%d", (bj->level-1)*LEVEL_PTS+bj->score);
@@ -671,8 +670,8 @@ static void jewels_drawboard(struct game_context* bj) {
 #endif
 
     /* print text */
-    rb->snprintf(str, 10, "%s %d", title, bj->level);
-    rb->lcd_putsxy(1, LCD_HEIGHT-(LCD_HEIGHT-(8*TILE_HEIGHT+YOFS))/2-3, str);
+    rb->lcd_putsxyf(1, LCD_HEIGHT-(LCD_HEIGHT-(8*TILE_HEIGHT+YOFS))/2-3,"%s %d",
+                   title, bj->level);
     
     if (bj->type == GAME_TYPE_NORMAL) {
         rb->snprintf(str, 6, "%d", (bj->level-1)*LEVEL_PTS+bj->score);
diff --git a/apps/plugins/lib/highscore.c b/apps/plugins/lib/highscore.c
index 185930202a..ff7a166222 100644
--- a/apps/plugins/lib/highscore.c
+++ b/apps/plugins/lib/highscore.c
@@ -125,7 +125,6 @@ void highscore_show(int position, struct highscore *scores, int num_scores,
                     bool show_level)
 {
     int i, w, h;
-    char str[30];
 #ifdef HAVE_LCD_COLOR
     unsigned bgcolor = rb->lcd_get_background();
     unsigned fgcolor = rb->lcd_get_foreground();
@@ -155,14 +154,11 @@ void highscore_show(int position, struct highscore *scores, int num_scores,
             rb->lcd_set_foreground(LCD_RGBPACK(245,0,0));
         }
 #endif
-        rb->snprintf (str, sizeof (str), "%d)", i+1);
-        rb->lcd_putsxy (MARGIN,3*h + h*i, str);
-        rb->snprintf (str, sizeof (str), "%d", scores[i].score);
-        rb->lcd_putsxy (LCD_WIDTH/4-w/4,3*h + h*i, str);
+        rb->lcd_putsxyf (MARGIN,3*h + h*i, "%d)", i+1);
+        rb->lcd_putsxyf (LCD_WIDTH/4-w/4,3*h + h*i, "%d", scores[i].score);
         
         if(show_level) {
-            rb->snprintf (str, sizeof (str), "%d", scores[i].level);
-            rb->lcd_putsxy (LCD_WIDTH*3/4-w/4,3*h + h*i, str);
+            rb->lcd_putsxyf (LCD_WIDTH*3/4-w/4,3*h + h*i, "%d", scores[i].level);
         }
         
         if(i == position) {
diff --git a/apps/plugins/mp3_encoder.c b/apps/plugins/mp3_encoder.c
index 06d28a344a..d26500819b 100644
--- a/apps/plugins/mp3_encoder.c
+++ b/apps/plugins/mp3_encoder.c
@@ -2137,15 +2137,13 @@ void set_scale_facs(int *mdct_freq)
 void compress(void)
 {
   int      i, gr, gr_cnt;
-  char     stg[20];
   uint32_t max;
 
   while(1)
   {
     if((frames & 7) == 0)
     { rb->lcd_clear_display();
-      rb->snprintf(stg, 20, "Frame %d / %d", frames, wav_size/SAMPL2/8);
-      rb->lcd_putsxy(4, 20, stg);
+      rb->lcd_putsxyf(4, 20, "Frame %d / %d", frames, wav_size/SAMPL2/8);
       rb->lcd_update();
     }
     /* encode one mp3 frame in this loop */
@@ -2496,7 +2494,6 @@ enum plugin_status plugin_start(const void* parameter)
     int   rat, srat, nrat; /* for rate selection */
     int   cont = 1, butt;
     long  tim  = 0;
-    char  stg[40];
     static const char* bstrg[] = {
         "64", "80", "96", "112", "128", "160", "192", "224", "256", "320"
     };
@@ -2568,18 +2565,15 @@ enum plugin_status plugin_start(const void* parameter)
         else
         {
             rb->close(wavfile);
-            rb->snprintf(stg, 20, "WaveOpen failed %d", wave_open());
-            rb->lcd_putsxy(0, 20, stg);
+            rb->lcd_putsxyf(0, 20, "WaveOpen failed %d", wave_open());
             rb->lcd_update();
             rb->sleep(5*HZ);
         }
 
         rb->lcd_clear_display();
-        rb->snprintf(stg, 30, "  Conversion: %ld.%02lds    ", tim/100, tim%100);
-        rb->lcd_putsxy(0, 30, stg);
+        rb->lcd_putsxyf(0, 30, "  Conversion: %ld.%02lds    ", tim/100, tim%100);
         tim = frames * SAMP_PER_FRAME * 100 / 44100; /* unit=.01s */
-        rb->snprintf(stg, 30, "  WAV-Length: %ld.%02lds    ", tim/100, tim%100);
-        rb->lcd_putsxy(0, 20, stg);
+        rb->lcd_putsxyf(0, 20, "  WAV-Length: %ld.%02lds    ", tim/100, tim%100);
         rb->lcd_update();
         rb->sleep(5*HZ);
     }
diff --git a/apps/plugins/nim.c b/apps/plugins/nim.c
index 3a3a870dad..70cf8dcec4 100644
--- a/apps/plugins/nim.c
+++ b/apps/plugins/nim.c
@@ -56,7 +56,6 @@ static unsigned char pattern3[]={0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15}; /*3
 static unsigned char pattern2[]={0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14}; /*2 parts*/
 static unsigned char pattern1[]={0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10}; /*1 part*/
 
-static unsigned char str[12];   /*String use to display the first line*/
 static unsigned long hsmile,hcry,h1,h2; /*Handle for the new pattern*/
 
 static bool end;    /*If true game is finished*/
@@ -101,8 +100,7 @@ static void display_first_line(int x)
 {
     int i;
 
-    rb->snprintf(str,sizeof(str),"       =%d",x);
-    rb->lcd_puts(0,0,str);
+    rb->lcd_putsf(0,0,"       =%d",x);
 
     rb->lcd_define_pattern(h1,pattern3);
     for (i=0;i<x/3;i++)
@@ -179,8 +177,7 @@ enum plugin_status plugin_start(const void* parameter)
                 y=1;
                 display_first_line(x);
 
-                rb->snprintf(str,sizeof(str),"[%d..%d]?=%d",min,v,y);
-                rb->lcd_puts(0,1,str);
+                rb->lcd_putsf(0,1,"[%d..%d]?=%d",min,v,y);
                 rb->lcd_update();
 
                 go=false;
@@ -215,8 +212,7 @@ enum plugin_status plugin_start(const void* parameter)
                             break;
                     }
                     display_first_line(x);
-                    rb->snprintf(str,sizeof(str),"[%d..%d]?=%d",min,v,y);
-                    rb->lcd_puts(0,1,str);
+                    rb->lcd_putsf(0,1,"[%d..%d]?=%d",min,v,y);
                     rb->lcd_update();
                 }
 
@@ -276,8 +272,7 @@ enum plugin_status plugin_start(const void* parameter)
                 }
                 v=y*2;
                 x-=y;
-                rb->snprintf(str,sizeof(str),"I take=%d",y);
-                rb->lcd_puts(0,1,str);
+                rb->lcd_putsf(0,1,"I take=%d",y);
                 rb->lcd_update();
                 rb->sleep(HZ);
             }
diff --git a/apps/plugins/pacbox/pacbox.c b/apps/plugins/pacbox/pacbox.c
index db25b1c0f1..e942841a19 100644
--- a/apps/plugins/pacbox/pacbox.c
+++ b/apps/plugins/pacbox/pacbox.c
@@ -367,7 +367,6 @@ static void stop_sound(void)
 static int gameProc( void )
 {
     int fps;
-    char str[80];
     int status;
     long end_time;
     int frame_counter = 0;
@@ -469,9 +468,7 @@ static int gameProc( void )
 
             if (settings.showfps) {
                 fps = (video_frames*HZ*100) / (*rb->current_tick-start_time);
-                rb->snprintf(str,sizeof(str),"%d.%02d / %d fps  ",
-                                             fps/100,fps%100,FPS);
-                rb->lcd_putsxy(0,0,str);
+                rb->lcd_putsxyf(0,0,"%d.%02d / %d fps  ",fps/100,fps%100,FPS);
             }
 
 #if !defined(HAVE_LCD_MODES) || \
diff --git a/apps/plugins/pegbox.c b/apps/plugins/pegbox.c
index a953c6804b..1c4b2fcb6e 100644
--- a/apps/plugins/pegbox.c
+++ b/apps/plugins/pegbox.c
@@ -773,7 +773,6 @@ static void pegbox_draw_board(struct game_context* pb)
 {
     unsigned int r, c, type;
     pb->num_left = 0;
-    char str[5];
 
     rb->lcd_clear_display();
 #ifdef WIDE_LAYOUT
@@ -819,15 +818,11 @@ static void pegbox_draw_board(struct game_context* pb)
     }
 
 #ifdef WIDE_LAYOUT
-    rb->snprintf(str, 3, "%d", pb->level);
-    rb->lcd_putsxy(TEXT_X, LEVEL_TEXT_Y, str);
-    rb->snprintf(str, 3, "%d", pb->num_left);
-    rb->lcd_putsxy(TEXT_X, PEGS_TEXT_Y, str);
+    rb->lcd_putsxyf(TEXT_X, LEVEL_TEXT_Y, "%d", pb->level);
+    rb->lcd_putsxyf(TEXT_X, PEGS_TEXT_Y, "%d", pb->num_left);
 #else
-    rb->snprintf(str, 3, "%d", pb->level);
-    rb->lcd_putsxy(LEVEL_TEXT_X, TEXT_Y, str);
-    rb->snprintf(str, 3, "%d", pb->num_left);
-    rb->lcd_putsxy(PEGS_TEXT_X, TEXT_Y, str);
+    rb->lcd_putsxyf(LEVEL_TEXT_X, TEXT_Y, "%d", pb->level);
+    rb->lcd_putsxyf(PEGS_TEXT_X, TEXT_Y, "%d", pb->num_left);
 #endif /*WIDE_LAYOUT*/
 
 #ifdef HAVE_LCD_COLOR
diff --git a/apps/plugins/reversi/reversi-gui.c b/apps/plugins/reversi/reversi-gui.c
index 5188986e84..6f5d53da58 100644
--- a/apps/plugins/reversi/reversi-gui.c
+++ b/apps/plugins/reversi/reversi-gui.c
@@ -613,7 +613,6 @@ enum plugin_status plugin_start(const void *parameter) {
     int lastbutton = BUTTON_NONE;
     int row, col;
     int w_cnt, b_cnt;
-    char msg_buf[30];
     
     /* Initialize Font Width and height */
     rb->lcd_getstringsize("0", &font_width, &font_height);
@@ -671,10 +670,8 @@ enum plugin_status plugin_start(const void *parameter) {
             /* TODO: Don't duplicate end of game check */
             if (reversi_game_is_finished(&game, cur_player)) {
                 reversi_count_occupied_cells(&game, &w_cnt, &b_cnt);
-                rb->snprintf(msg_buf, sizeof(msg_buf),
-                        "Game over. %s won.",
+                rb->splashf(HZ*2, "Game over. %s won.",
                         (w_cnt>b_cnt?"WHITE":"BLACK"));
-                rb->splash(HZ*2, msg_buf);
                 draw_screen = true; /* Must update screen after splash */
                 game_finished = true;
             }
@@ -743,10 +740,8 @@ enum plugin_status plugin_start(const void *parameter) {
                     cur_player = reversi_flipped_color(cur_player);
                     if (reversi_game_is_finished(&game, cur_player)) {
                         reversi_count_occupied_cells(&game, &w_cnt, &b_cnt);
-                        rb->snprintf(msg_buf, sizeof(msg_buf),
-                                "Game over. %s won.",
+                        rb->splashf(HZ*2, "Game over. %s won.",
                                 (w_cnt>b_cnt?"WHITE":"BLACK"));
-                        rb->splash(HZ*2, msg_buf);
                         draw_screen = true; /* Must update screen after splash */
                         game_finished = true;
                     }
diff --git a/apps/plugins/robotfindskitten.c b/apps/plugins/robotfindskitten.c
index 003087b5c3..8426f35850 100644
--- a/apps/plugins/robotfindskitten.c
+++ b/apps/plugins/robotfindskitten.c
@@ -598,11 +598,9 @@ int screen[X_MAX + 1][Y_MAX + 1];
  *
  *****************************************************************************/
 
-static void drawchar(int x, int y, char c)
+static inline void drawchar(int x, int y, char c)
 {
-  char str[2];
-  rb->snprintf(str, sizeof(str), "%c", c);
-  rb->lcd_putsxy(x*SYSFONT_WIDTH, y*SYSFONT_HEIGHT, str);
+  rb->lcd_putsxyf(x*SYSFONT_WIDTH, y*SYSFONT_HEIGHT, "%c", c);
 }
 
 static void draw(struct screen_object o)
diff --git a/apps/plugins/rockblox.c b/apps/plugins/rockblox.c
index 90df401ef9..44d637d8fa 100644
--- a/apps/plugins/rockblox.c
+++ b/apps/plugins/rockblox.c
@@ -810,25 +810,18 @@ static void init_board (void)
 /* show the score, level and lines */
 static void show_details (void)
 {
-    char str[25];               /* for strings */
-
 #ifdef HAVE_LCD_BITMAP
 #if LCD_DEPTH >= 2
     rb->lcd_set_foreground (LCD_BLACK);
     rb->lcd_set_background (LCD_WHITE);
 #endif
-    rb->snprintf (str, sizeof (str), "%d", rockblox_status.score);
-    rb->lcd_putsxy (LABEL_X, SCORE_Y, str);
-    rb->snprintf (str, sizeof (str), "%d", rockblox_status.level);
-    rb->lcd_putsxy (LEVEL_X, LEVEL_Y, str);
-    rb->snprintf (str, sizeof (str), "%d", rockblox_status.lines);
-    rb->lcd_putsxy (LINES_X, LINES_Y, str);
+    rb->lcd_putsxyf (LABEL_X, SCORE_Y, "%d", rockblox_status.score);
+    rb->lcd_putsxyf (LEVEL_X, LEVEL_Y, "%d", rockblox_status.level);
+    rb->lcd_putsxyf (LINES_X, LINES_Y, "%d", rockblox_status.lines);
 #else  /* HAVE_LCD_CHARCELLS */
-    rb->snprintf (str, sizeof (str), "L%d/%d", rockblox_status.level,
+    rb->lcd_putsf (5, 0, "L%d/%d", rockblox_status.level,
             rockblox_status.lines);
-    rb->lcd_puts (5, 0, str);
-    rb->snprintf (str, sizeof (str), "S%d", rockblox_status.score);
-    rb->lcd_puts (5, 1, str);
+    rb->lcd_putsf (5, 1, "S%d", rockblox_status.score);
 #endif
 }
 
@@ -836,14 +829,10 @@ static void show_details (void)
 static void show_highscores (void)
 {
     int i;
-    char str[25];               /* for strings */
 
     for (i = 0; i<NUM_SCORES; i++)
-    {
-        rb->snprintf (str, sizeof (str), "%06d" _SPACE "L%1d",
-                      highscores[i].score, highscores[i].level);
-        rb->lcd_putsxy (HIGH_LABEL_X, HIGH_SCORE_Y + (10 * i), str);
-    }
+        rb->lcd_putsxyf (HIGH_LABEL_X, HIGH_SCORE_Y + (10 * i),
+            "%06d" _SPACE "L%1d", highscores[i].score, highscores[i].level);
 }
 #endif
 
diff --git a/apps/plugins/rockblox1d.c b/apps/plugins/rockblox1d.c
index 6a175e5bb5..96937bbae9 100644
--- a/apps/plugins/rockblox1d.c
+++ b/apps/plugins/rockblox1d.c
@@ -206,7 +206,6 @@ enum plugin_status plugin_start(const void* parameter)
     int type_next_brick = 0;
     
     unsigned long int score = 34126;
-    char score_buf[10];
     
     (void)parameter;
 
@@ -278,8 +277,7 @@ enum plugin_status plugin_start(const void* parameter)
         } 
 
         /* Score box */
-        rb->snprintf(score_buf, sizeof(score_buf), "%8ld0", score);
-        rb->lcd_putsxy(score_x, SCORE_Y, score_buf);
+        rb->lcd_putsxyf(score_x, SCORE_Y, "%8ld0", score);
 
         rb->lcd_update();
 
diff --git a/apps/plugins/rockbox_flash.c b/apps/plugins/rockbox_flash.c
index 9da3f63c8b..09ee96997c 100644
--- a/apps/plugins/rockbox_flash.c
+++ b/apps/plugins/rockbox_flash.c
@@ -559,7 +559,6 @@ static void DoUserDialog(char* filename)
 {
     tImageHeader ImageHeader;
     tFlashInfo FlashInfo;
-    static char buf[MAX_PATH];
     int button;
     int rc; /* generic return code */
     UINT32 space, aligned_size, true_size;
@@ -612,8 +611,7 @@ static void DoUserDialog(char* filename)
     bl_version = BootloaderVersion();
     if (bl_version < LATEST_BOOTLOADER_VERSION)
     {
-        rb->snprintf(buf, sizeof(buf), "Bootloader V%d", bl_version);
-        rb->lcd_puts(0, 0, buf);
+        rb->lcd_putsf(0, 0, "Bootloader V%d", bl_version);
         rb->lcd_puts(0, 1, "Hint: You're not  ");
         rb->lcd_puts(0, 2, "using the latest  ");
         rb->lcd_puts(0, 3, "bootloader.       ");
@@ -722,10 +720,9 @@ static void DoUserDialog(char* filename)
     if (rc)
     {   /* errors */
         rb->lcd_clear_display();
-        rb->snprintf(buf, sizeof(buf), "%d errors", rc);
         rb->lcd_puts(0, 0, "Error:");
         rb->lcd_puts(0, 1, "Programming fail!");
-        rb->lcd_puts(0, 2, buf);
+        rb->lcd_putsf(0, 2, "%d errors", rc);
         rb->lcd_update();
         button = WaitForButton();
     }
@@ -743,10 +740,9 @@ static void DoUserDialog(char* filename)
     }
     else
     {
-        rb->snprintf(buf, sizeof(buf), "%d errors", rc);
         rb->lcd_puts(0, 0, "Error:");
         rb->lcd_puts(0, 1, "Verify fail!");
-        rb->lcd_puts(0, 2, buf);
+        rb->lcd_putsf(0, 2, "%d errors", rc);
         rb->lcd_puts(0, 3, "Use safe image");
         rb->lcd_puts(0, 4, "if booting hangs:");
         rb->lcd_puts(0, 5, "F1 during power-on");
diff --git a/apps/plugins/rockboy/debug.c b/apps/plugins/rockboy/debug.c
index a829b98799..8dc7320035 100644
--- a/apps/plugins/rockboy/debug.c
+++ b/apps/plugins/rockboy/debug.c
@@ -571,7 +571,7 @@ void debug_disassemble(addr a, int c)
     static int opaddr;
     static char mnemonic[256];
     static char *pattern;
-    char meow[500],buf[300];
+    char ops_str[300];
     if(!debug_trace) return;
 
     while (c > 0)
@@ -600,8 +600,7 @@ void debug_disassemble(addr a, int c)
                 case 'B':
                 case 'b':
                     ops[k] = readb(a); a++;
-                    j += snprintf(mnemonic + j,255-j,
-                        "%02Xh", ops[k++]);
+                    j += snprintf(mnemonic + j,255-j, "%02Xh", ops[k++]);
                     break;
                 case 'W':
                 case 'w':
@@ -614,8 +613,7 @@ void debug_disassemble(addr a, int c)
                 case 'O':
                 case 'o':
                     ops[k] = readb(a); a++;
-                    j += snprintf(mnemonic + j, 255-j,"%+d",
-                        (n8)(ops[k++]));
+                    j += snprintf(mnemonic + j, 255-j,"%+d", (n8)(ops[k++]));
                     break;
                 }
                 i++;
@@ -626,52 +624,19 @@ void debug_disassemble(addr a, int c)
             }
         }
         mnemonic[j] = 0;
-        snprintf(buf,299,"%04X ", opaddr);
-        strcpy(meow,buf);
         switch (operand_count[ops[0]]) {
         case 1:
-            snprintf(buf,299,"%02X       ", ops[0]);
-            strcat(meow,buf);
+            snprintf(ops_str,sizeof(ops_str),"%02X      ", ops[0]);
             break;
         case 2:
-            snprintf(buf,299,"%02X %02X    ", ops[0], ops[1]);
-            strcat(meow,buf);
+            snprintf(ops_str,sizeof(ops_str),"%02X %02X   ", ops[0], ops[1]);
             break;
         case 3:
-            snprintf(buf,299,"%02X %02X %02X ", ops[0], ops[1], ops[2]);
-            strcat(meow,buf);
+            snprintf(ops_str,sizeof(ops_str),"%02X %02X %02X", ops[0], ops[1], ops[2]);
             break;
         }
-        snprintf(buf,"%-16.16s", mnemonic);
-        strcat(meow,buf);
-                rb->lcd_putsxy(0,0,meow);
+        rb->lcd_putsxyf(0,0,"%04X %s %-16.16s", opaddr, ops_str, mnemonic);
         rb->lcd_update();        
         c--;
     }
 }
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/apps/plugins/rockboy/lcd.c b/apps/plugins/rockboy/lcd.c
index 0da9fc7e9d..22f8864889 100644
--- a/apps/plugins/rockboy/lcd.c
+++ b/apps/plugins/rockboy/lcd.c
@@ -1009,10 +1009,6 @@ void setvidmode(void)
 
 void lcd_refreshline(void)
 {
-#ifdef HAVE_LCD_COLOR
-    char frameout[30];
-#endif
-
     if (!(R_LCDC & 0x80))
         return; /* should not happen... */
 
@@ -1112,8 +1108,8 @@ void lcd_refreshline(void)
     {
         if(options.showstats)
         {
-            snprintf(frameout,sizeof(frameout),"FPS: %d Frameskip: %d ",options.fps, options.frameskip);
-            rb->lcd_putsxy(0,LCD_HEIGHT-10,frameout);
+            rb->lcd_putsxyf(0,LCD_HEIGHT-10,"FPS: %d Frameskip: %d ",
+                    options.fps, options.frameskip);
             rb->lcd_update_rect(0,LCD_HEIGHT-10, LCD_WIDTH, 10);
         }
 
diff --git a/apps/plugins/rockboy/menu.c b/apps/plugins/rockboy/menu.c
index 6e8df5c0ea..242518c01e 100644
--- a/apps/plugins/rockboy/menu.c
+++ b/apps/plugins/rockboy/menu.c
@@ -171,7 +171,7 @@ static void build_slot_path(char *buf, size_t bufsiz, int slot_id) {
  *
  */
 static bool do_file(char *path, char *desc, bool is_load) {
-    char buf[200], desc_buf[20];
+    char desc_buf[20];
     int fd, file_mode;
     
     /* set file mode */
@@ -191,8 +191,7 @@ static bool do_file(char *path, char *desc, bool is_load) {
         loadstate(fd);
     
         /* print out a status message so the user knows the state loaded */
-        snprintf(buf, 200, "Loaded state from \"%s\"", path);
-        rb->splash(HZ * 1, buf);
+        rb->splashf(HZ * 1, "Loaded state from \"%s\"", path);
     }
     else
     {
diff --git a/apps/plugins/rocklife.c b/apps/plugins/rocklife.c
index afe442f989..8ae5cdb120 100644
--- a/apps/plugins/rocklife.c
+++ b/apps/plugins/rocklife.c
@@ -90,7 +90,6 @@ unsigned char grid_b[GRID_W][GRID_H];
 int generation = 0;
 int population = 0;
 int status_line = 0;
-char buf[30];
 
 
 static inline bool is_valid_cell(int x, int y) {
@@ -308,11 +307,10 @@ static void show_grid(char *pgrid){
         }
     }
     if(status_line){
-        rb->snprintf(buf, sizeof(buf), "g:%d p:%d", generation, population);
 #if LCD_DEPTH > 1
         rb->lcd_set_foreground( LCD_BLACK );
 #endif
-        rb->lcd_puts(0, 0, buf);
+        rb->lcd_putsf(0, 0, "g:%d p:%d", generation, population);
     }
     rb->lcd_update();
 }
diff --git a/apps/plugins/rockpaint.c b/apps/plugins/rockpaint.c
index 7032a8e793..557c84d8ea 100644
--- a/apps/plugins/rockpaint.c
+++ b/apps/plugins/rockpaint.c
@@ -977,8 +977,6 @@ static unsigned int color_chooser( unsigned int color )
     enum BaseColor current = Red;
     bool has_changed;
 
-    char str[6] = "";
-
     restore_screen();
 
     rgb2hsv( red, green, blue, &hue, &saturation, &value );
@@ -1028,18 +1026,14 @@ static unsigned int color_chooser( unsigned int color )
 #undef POSITION
         rb->lcd_set_background(COLOR_LIGHTGRAY);
         rb->lcd_setfont( FONT_SYSFIXED );
-        rb->snprintf( str, 6, "%d", hue/10 );
-        rb->lcd_putsxy( left + 117, top + 20, str );
-        rb->snprintf( str, 6, "%d.%d", saturation/255, ((saturation*100)/255)%100 );
-        rb->lcd_putsxy( left + 117, top + 30, str );
-        rb->snprintf( str, 6, "%d.%d", value/255, ((value*100)/255)%100 );
-        rb->lcd_putsxy( left + 117, top + 40, str );
-        rb->snprintf( str, 6, "%d", red );
-        rb->lcd_putsxy( left + 117, top + 50, str );
-        rb->snprintf( str, 6, "%d", green );
-        rb->lcd_putsxy( left + 117, top + 60, str );
-        rb->snprintf( str, 6, "%d", blue );
-        rb->lcd_putsxy( left + 117, top + 70, str );
+        rb->lcd_putsxyf( left + 117, top + 20, "%d", hue/10 );
+        rb->lcd_putsxyf( left + 117, top + 30, "%d.%d",
+                saturation/255, ((saturation*100)/255)%100 );
+        rb->lcd_putsxyf( left + 117, top + 40, "%d.%d",
+                value/255, ((value*100)/255)%100 );
+        rb->lcd_putsxyf( left + 117, top + 50, "%d", red );
+        rb->lcd_putsxyf( left + 117, top + 60, "%d", green );
+        rb->lcd_putsxyf( left + 117, top + 70, "%d", blue );
         rb->lcd_setfont( FONT_UI );
 
 #define CURSOR( l ) \
diff --git a/apps/plugins/sliding_puzzle.c b/apps/plugins/sliding_puzzle.c
index 6ea04d5057..517a3a1690 100644
--- a/apps/plugins/sliding_puzzle.c
+++ b/apps/plugins/sliding_puzzle.c
@@ -489,8 +489,7 @@ static void move_spot(int x, int y)
                    moves_y, s);
 #else
     (void)w;
-    rb->snprintf(s, sizeof(s), "Moves: %d", moves);
-    rb->lcd_putsxy(3, moves_y, s);
+    rb->lcd_putsxyf(3, moves_y, "Moves: %d", moves);
 #endif
     for(i=1;i<=4;i++)
     {
@@ -532,8 +531,7 @@ static void draw_playfield(void)
 #else
     (void)w;
     rb->lcd_hline(0, LCD_WIDTH-1, IMAGE_HEIGHT);
-    rb->snprintf(s, sizeof(s), "Moves: %d", moves);
-    rb->lcd_putsxy(3, moves_y, s);
+    rb->lcd_putsxyf(3, moves_y, "Moves: %d", moves);
 #endif
 
     /* draw spots to the lcd */
diff --git a/apps/plugins/snake.c b/apps/plugins/snake.c
index 5ae941a655..eb2b311fc9 100644
--- a/apps/plugins/snake.c
+++ b/apps/plugins/snake.c
@@ -260,18 +260,14 @@ static struct configdata config[] = {
 
 static void snake_die (void)
 {
-    char pscore[17];
     rb->lcd_clear_display();
-    rb->snprintf(pscore,sizeof(pscore),"Your score: %d",score);
     rb->lcd_puts(0,0,"Oops...");
-    rb->lcd_puts(0,1, pscore);
+    rb->lcd_putsf(0,1,"Your score: %d",score);
     if (highscore_update(score, level, "", highscores, NUM_SCORES) == 0) {
         rb->lcd_puts(0,2,"New High Score!");
     }
     else {
-        rb->snprintf(pscore, sizeof(pscore),
-                    "High Score: %d", highscores[0].score);
-        rb->lcd_puts(0,2,pscore);
+        rb->lcd_putsf(0,2,"High Score: %d", highscores[0].score);
     }
     rb->lcd_update();
     rb->sleep(3*HZ);
diff --git a/apps/plugins/sokoban.c b/apps/plugins/sokoban.c
index 6e94519803..1159402bac 100644
--- a/apps/plugins/sokoban.c
+++ b/apps/plugins/sokoban.c
@@ -982,14 +982,11 @@ static void update_screen(void)
 #define BOARD_WIDTH LCD_WIDTH
 #define BOARD_HEIGHT (LCD_HEIGHT - STAT_HEIGHT)
     rb->lcd_putsxy(STAT_X + 4, STAT_Y + 4, "Level");
-    rb->snprintf(buf, sizeof(buf), "%d", current_info.level.index + 1);
-    rb->lcd_putsxy(STAT_X + 7, STAT_Y + 14, buf);
+    rb->lcd_putsxyf(STAT_X + 7, STAT_Y + 14, "%d", current_info.level.index + 1);
     rb->lcd_putsxy(STAT_X + 41, STAT_Y + 4, "Moves");
-    rb->snprintf(buf, sizeof(buf), "%d", current_info.level.moves);
-    rb->lcd_putsxy(STAT_X + 44, STAT_Y + 14, buf);
+    rb->lcd_putsxyf(STAT_X + 44, STAT_Y + 14, "%d", current_info.level.moves);
     rb->lcd_putsxy(STAT_X + 79, STAT_Y + 4, "Pushes");
-    rb->snprintf(buf, sizeof(buf), "%d", current_info.level.pushes);
-    rb->lcd_putsxy(STAT_X + 82, STAT_Y + 14, buf);
+    rb->lcd_putsxyf(STAT_X + 82, STAT_Y + 14, "%d", current_info.level.pushes);
 
     rb->lcd_drawrect(STAT_X, STAT_Y, 38, STAT_HEIGHT);
     rb->lcd_drawrect(STAT_X + 37, STAT_Y, 39, STAT_HEIGHT);
@@ -1005,18 +1002,15 @@ static void update_screen(void)
 #define BOARD_WIDTH (LCD_WIDTH - STAT_WIDTH)
 #define BOARD_HEIGHT LCD_HEIGHT
     rb->lcd_putsxy(STAT_X + 1, STAT_Y + 2, "Level");
-    rb->snprintf(buf, sizeof(buf), "%d", current_info.level.index + 1);
-    rb->lcd_putsxy(STAT_X + 4, STAT_Y + 12, buf);
+    rb->lcd_putsxyf(STAT_X + 4, STAT_Y + 12, "%d", current_info.level.index + 1);
     rb->lcd_putsxy(STAT_X + 1, STAT_Y + 23, "Moves");
-    rb->snprintf(buf, sizeof(buf), "%d", current_info.level.moves);
-    rb->lcd_putsxy(STAT_X + 4, STAT_Y + 33, buf);
+    rb->lcd_putsxyf(STAT_X + 4, STAT_Y + 33, "%d", current_info.level.moves);
 #if STAT_WIDTH < 38
     rb->lcd_putsxy(STAT_X + 1, STAT_Y + 44, "Push");
 #else
     rb->lcd_putsxy(STAT_X + 1, STAT_Y + 44, "Pushes");
 #endif
-    rb->snprintf(buf, sizeof(buf), "%d", current_info.level.pushes);
-    rb->lcd_putsxy(STAT_X + 4, STAT_Y + 54, buf);
+    rb->lcd_putsxyf(STAT_X + 4, STAT_Y + 54, "%d", current_info.level.pushes);
 
     rb->lcd_drawrect(STAT_X, STAT_Y + 0, STAT_WIDTH, 64);
     rb->lcd_hline(STAT_X, LCD_WIDTH - 1, STAT_Y + 21);
diff --git a/apps/plugins/spacerocks.c b/apps/plugins/spacerocks.c
index 2e7ccc0743..206d52aed8 100644
--- a/apps/plugins/spacerocks.c
+++ b/apps/plugins/spacerocks.c
@@ -1826,7 +1826,6 @@ static int spacerocks_menu(void)
 
 static int spacerocks_game_loop(void)
 {
-    char str[20];
     int button;
     int end;
     int position;
@@ -1861,8 +1860,7 @@ static int spacerocks_game_loop(void)
                 break;
 
             case PAUSE_MODE:
-                rb->snprintf(str, sizeof(str), "score %d ", current_score);
-                rb->lcd_putsxy(1,LCD_HEIGHT-8, str);
+                rb->lcd_putsxyf(1,LCD_HEIGHT-8, "score %d ", current_score);
                 rb->lcd_putsxy(CENTER_LCD_X - 15,
                                CENTER_LCD_Y + CENTER_LCD_Y/2 - 4, "pause");
                 draw_and_move_missiles();
@@ -1871,8 +1869,7 @@ static int spacerocks_game_loop(void)
                 break;
 
             case PLAY_MODE:
-                rb->snprintf(str, sizeof(str), "score %d ", current_score);
-                rb->lcd_putsxy(1, LCD_HEIGHT-8, str);
+                rb->lcd_putsxyf(1, LCD_HEIGHT-8, "score %d ", current_score);
                 draw_and_move_missiles();
                 draw_lives();
                 check_collisions();
@@ -1880,11 +1877,10 @@ static int spacerocks_game_loop(void)
                 break;
 
             case SHOW_LEVEL:
-                rb->snprintf(str, sizeof(str), "score %d ", current_score);
-                rb->lcd_putsxy(1, LCD_HEIGHT-8, str);
-                rb->snprintf(str, sizeof(str), "stage %d ", current_level);
-                rb->lcd_putsxy(CENTER_LCD_X - 20,
-                               CENTER_LCD_Y + CENTER_LCD_Y/2 - 4, str);
+                rb->lcd_putsxyf(1, LCD_HEIGHT-8, "score %d ", current_score);
+                rb->lcd_putsxyf(CENTER_LCD_X - 20,
+                               CENTER_LCD_Y + CENTER_LCD_Y/2 - 4,
+                               "stage %d ", current_level);
                 draw_lives();
                 draw_and_move_ship();
                 show_level_timeout--;
diff --git a/apps/plugins/star.c b/apps/plugins/star.c
index e5d8259d88..a653bdb4a9 100644
--- a/apps/plugins/star.c
+++ b/apps/plugins/star.c
@@ -759,7 +759,6 @@ static void star_transition_update(void)
 static void star_display_board_info(int current_level)
 {
     int label_pos_y, tile_pos_y;
-    char str_info[32];
 
     if (TILE_HEIGHT > char_height)
     {
@@ -772,10 +771,9 @@ static void star_display_board_info(int current_level)
         tile_pos_y = label_pos_y + (char_height - TILE_HEIGHT) / 2;
     }
 
-    rb->snprintf(str_info, sizeof(str_info), "L:%02d", current_level + 1);
-    rb->lcd_putsxy(STAR_OFFSET_X, label_pos_y, str_info);
-    rb->snprintf(str_info, sizeof(str_info), "S:%02d", star_count);
-    rb->lcd_putsxy(LCD_WIDTH/2 - 2 * char_width, label_pos_y, str_info);
+    rb->lcd_putsxyf(STAR_OFFSET_X, label_pos_y, "L:%02d", current_level + 1);
+    rb->lcd_putsxyf(LCD_WIDTH/2 - 2 * char_width, label_pos_y, "S:%02d",
+                  star_count);
     rb->lcd_putsxy(STAR_OFFSET_X + (STAR_WIDTH-1) * TILE_WIDTH - 2 * char_width,
                    label_pos_y, "C:");
 
diff --git a/apps/plugins/starfield.c b/apps/plugins/starfield.c
index 7f17970a84..6ddc268285 100644
--- a/apps/plugins/starfield.c
+++ b/apps/plugins/starfield.c
@@ -377,7 +377,6 @@ static struct starfield starfield;
 
 int plugin_main(void)
 {
-    char str_buffer[40];
     int button, avg_peak, t_disp=0;
     int font_h, font_w;
     bool pulse=true;
@@ -449,14 +448,11 @@ int plugin_main(void)
         if (t_disp > 0)
         {
             --t_disp;
-            rb->snprintf(str_buffer, sizeof(str_buffer),
-                         "star:%d speed:%d",
-                         starfield.nb_stars,
-                         starfield.z_move);
 #ifdef HAVE_LCD_COLOR
             rb->lcd_set_foreground(LCD_WHITE);
 #endif
-            rb->lcd_putsxy(0, LCD_HEIGHT-font_h, str_buffer);
+            rb->lcd_putsxyf(0, LCD_HEIGHT-font_h, "star:%d speed:%d",
+                           starfield.nb_stars, starfield.z_move);
         }
         rb->lcd_update();
 
diff --git a/apps/plugins/superdom.c b/apps/plugins/superdom.c
index 5ded7f9f12..ad54c565b2 100644
--- a/apps/plugins/superdom.c
+++ b/apps/plugins/superdom.c
@@ -500,13 +500,9 @@ void update_score(void) {
     rb->lcd_fillrect(5,LCD_HEIGHT-20,105,20);
     rb->lcd_set_drawmode(DRMODE_SOLID);
     strength = calc_strength(COLOUR_LIGHT, cursor.x, cursor.y);
-    rb->snprintf(buf, sizeof(buf), "Your power: %d.%d", 
-                    strength/10, strength%10);
-    rb->lcd_putsxy(5,LCD_HEIGHT-20, buf);
+    rb->lcd_putsxyf(5,LCD_HEIGHT-20,"Your power: %d.%d",strength/10,strength%10);
     strength = calc_strength(COLOUR_DARK, cursor.x, cursor.y);
-    rb->snprintf(buf, sizeof(buf), "Comp power: %d.%d", 
-                    strength/10, strength%10);
-    rb->lcd_putsxy(5,LCD_HEIGHT-10, buf);
+    rb->lcd_putsxyf(5,LCD_HEIGHT-10,"Comp power: %d.%d",strength/10,strength%10);
     rb->lcd_setfont(FONT_UI);
 }
 
@@ -733,8 +729,7 @@ int get_number(char* param, int* value, int max) {
                     button_labels[i][j]);
         }
     }
-    rb->snprintf(buf,sizeof(buf), "%d", *value);
-    rb->lcd_putsxy(NUM_MARGIN_X+10, NUM_MARGIN_Y+4*NUM_BOX_HEIGHT+10, buf);
+    rb->lcd_putsxyf(NUM_MARGIN_X+10, NUM_MARGIN_Y+4*NUM_BOX_HEIGHT+10,"%d",*value);
     rb->lcd_getstringsize(param, &width, &height);
     if(width < LCD_WIDTH)
         rb->lcd_putsxy((LCD_WIDTH-width)/2, (NUM_MARGIN_Y-height)/2, param);
@@ -772,9 +767,8 @@ int get_number(char* param, int* value, int max) {
                 rb->lcd_fillrect(0, NUM_MARGIN_Y+4*NUM_BOX_HEIGHT+10,
                                 LCD_WIDTH, 30);
                 rb->lcd_set_drawmode(DRMODE_SOLID);
-                rb->snprintf(buf,sizeof(buf), "%d", *value);
-                rb->lcd_putsxy(NUM_MARGIN_X+10, 
-                                NUM_MARGIN_Y+4*NUM_BOX_HEIGHT+10, buf);
+                rb->lcd_putsxyf(NUM_MARGIN_X+10,NUM_MARGIN_Y+4*NUM_BOX_HEIGHT+10,
+                               "%d", *value);
                 break;
             case SUPERDOM_CANCEL:
                 *value = 0;
@@ -1404,10 +1398,8 @@ int select_square(void) {
     update_score();
 #if LCD_WIDTH >= 220
     rb->lcd_setfont(FONT_SYSFIXED);
-    rb->snprintf(buf, sizeof(buf), "Cash: %d", humanres.cash);
-    rb->lcd_putsxy(125, LCD_HEIGHT-20, buf);
-    rb->snprintf(buf, sizeof(buf), "Food: %d", humanres.food);
-    rb->lcd_putsxy(125, LCD_HEIGHT-10, buf);
+    rb->lcd_putsxyf(125, LCD_HEIGHT-20,"Cash: %d", humanres.cash);
+    rb->lcd_putsxyf(125, LCD_HEIGHT-10,"Food: %d", humanres.food);
     rb->lcd_setfont(FONT_UI);
 #endif
     rb->lcd_update();
diff --git a/apps/plugins/test_scanrate.c b/apps/plugins/test_scanrate.c
index d29544fb33..f22beb87ff 100644
--- a/apps/plugins/test_scanrate.c
+++ b/apps/plugins/test_scanrate.c
@@ -152,7 +152,6 @@ static void timer_isr(void)
 
 int plugin_main(void)
 {
-    unsigned char buf[32];
     int button;
     bool done = false;
     bool change = true;
@@ -186,9 +185,8 @@ int plugin_main(void)
         {
             /* The actual frequency is twice the displayed value */
             rb->timer_set_period(TIMER_FREQ * 5 / scan_rate);
-            rb->snprintf(buf, sizeof(buf), "f: %d.%d Hz", scan_rate / 10,
+            rb->lcd_putsxyf(TEXT_X, TEXT_Y, "f: %d.%d Hz", scan_rate / 10,
                          scan_rate % 10);
-            rb->lcd_putsxy(TEXT_X, TEXT_Y, buf);
             need_refresh = true;
             change = false;
         }
diff --git a/apps/plugins/vbrfix.c b/apps/plugins/vbrfix.c
index 71c502bc67..98ca15b6a8 100644
--- a/apps/plugins/vbrfix.c
+++ b/apps/plugins/vbrfix.c
@@ -29,10 +29,7 @@ char tmpname[MAX_PATH];
 
 static void xingupdate(int percent)
 {
-    char buf[32];
-
-    rb->snprintf(buf, 32, "%d%%", percent);
-    rb->lcd_puts(0, 1, buf);
+    rb->lcd_putsf(0, 1, "%d%%", percent);
     rb->lcd_update();
 }
 
diff --git a/apps/plugins/vu_meter.c b/apps/plugins/vu_meter.c
index 6dc69d1d4e..f9ecf8ef33 100644
--- a/apps/plugins/vu_meter.c
+++ b/apps/plugins/vu_meter.c
@@ -465,7 +465,6 @@ void save_settings(void) {
 }
 
 void change_volume(int delta) {
-    char curr_vol[5];
     int minvol = rb->sound_min(SOUND_VOLUME);
     int maxvol = rb->sound_max(SOUND_VOLUME);
     int vol = rb->global_settings->volume + delta;
@@ -475,8 +474,7 @@ void change_volume(int delta) {
     if (vol != rb->global_settings->volume) {
         rb->sound_set(SOUND_VOLUME, vol);
         rb->global_settings->volume = vol;
-        rb->snprintf(curr_vol, sizeof(curr_vol), "%d", vol);
-        rb->lcd_putsxy(0,0, curr_vol);
+        rb->lcd_putsxyf(0,0, "%d", vol);
         rb->lcd_update();
         rb->sleep(HZ/12);
     }
diff --git a/apps/plugins/wav2wv.c b/apps/plugins/wav2wv.c
index 98b4c0fe4f..e2db398ef7 100644
--- a/apps/plugins/wav2wv.c
+++ b/apps/plugins/wav2wv.c
@@ -58,7 +58,6 @@ static void wvupdate (int32_t start_tick,
 {
     int32_t elapsed_ticks = *rb->current_tick - start_tick;
     int compression = 0, progress = 0, realtime = 0;
-    char buf[32];
 
     if (total_samples)
         progress = (int)(((int64_t) samples_converted * 100 +
@@ -72,18 +71,11 @@ static void wvupdate (int32_t start_tick,
         compression = (int)(((int64_t)(bytes_read - bytes_written) * 100 +
             (bytes_read/2)) / bytes_read);
 
-    rb->snprintf(buf, 32, "elapsed time: %ld secs",
+    rb->lcd_putsf(0, 2, "elapsed time: %ld secs",
                  (long)(elapsed_ticks + (HZ/2)) / HZ);
-    rb->lcd_puts(0, 2, (unsigned char *)buf);
-
-    rb->snprintf(buf, 32, "progress: %d%%", progress);
-    rb->lcd_puts(0, 4, (unsigned char *)buf);
-
-    rb->snprintf(buf, 32, "realtime: %d%%  ", realtime);
-    rb->lcd_puts(0, 6, (unsigned char *)buf);
-
-    rb->snprintf(buf, 32, "compression: %d%%  ", compression);
-    rb->lcd_puts(0, 8, (unsigned char *)buf);
+    rb->lcd_putsf(0, 4, "progress: %d%%", progress);
+    rb->lcd_putsf(0, 6, "realtime: %d%%  ", realtime);
+    rb->lcd_putsf(0, 8, "compression: %d%%  ", compression);
 
 #ifdef HAVE_LCD_BITMAP
     rb->lcd_update();
diff --git a/apps/plugins/wavplay.c b/apps/plugins/wavplay.c
index cbd4dfbeda..887c5cdd55 100644
--- a/apps/plugins/wavplay.c
+++ b/apps/plugins/wavplay.c
@@ -3454,7 +3454,6 @@ void cleanup(void *fd)
 
 int play_file(char* filename)
 {
-    char buf[32];
     int button;
     int fd;
     int wanted, got;
@@ -3540,11 +3539,9 @@ int play_file(char* filename)
     time = bytes / (samplerate * 2 * channels);
 
     rb->lcd_puts(0, 0, "Playing WAV file");
-    rb->snprintf(buf, sizeof(buf), "%dHz %s", samplerate,
+    rb->lcd_putsf(0, 1, "%dHz %s", samplerate,
                  (channels == 1) ? "mono" : "stereo");
-    rb->lcd_puts(0, 1, buf);
-    rb->snprintf(buf, sizeof(buf), "Length: %d:%02d", time / 60, time % 60);
-    rb->lcd_puts(0, 2, buf);
+    rb->lcd_putsf(0, 2, "Length: %d:%02d", time / 60, time % 60);
     rb->lcd_update();
 
     rb->sound_set_pitch(PITCH_SPEED_100);  /* reset pitch */
diff --git a/apps/plugins/wavrecord.c b/apps/plugins/wavrecord.c
index 375642ec4b..91ce9c92f6 100644
--- a/apps/plugins/wavrecord.c
+++ b/apps/plugins/wavrecord.c
@@ -3480,7 +3480,6 @@ static bool update_wav_header(char *filename, int sample_rate,
 static int record_file(char *filename)
 {
     bool recording, saving;
-    char buf[32];
     int fd, low_water, i;
     int bytes_written;
     int button;
@@ -3514,8 +3513,6 @@ static int record_file(char *filename)
     
     rb->lcd_clear_display();
     rb->lcd_puts(0, 0, filename);
-    rb->snprintf(buf, sizeof(buf), "%sHz 16bit %s",
-                 samplerate_str[reccfg.samplerate], channel_str[reccfg.channels]);
 
     switch (reccfg.source)
     {
@@ -3535,12 +3532,18 @@ static int record_file(char *filename)
 #ifdef HAVE_SPDIF_REC
         case WAV_SRC_SPDIF:
             rb->mas_codec_writereg(0, 0x01);
-            rb->snprintf(buf, sizeof(buf), "16bit %s",
-                         channel_str[reccfg.channels]);
             break;
 #endif
     }
-    rb->lcd_puts(0, 1, buf);
+
+#ifdef HAVE_SPDIF_REC
+    if (reccfg.source == WAV_SRC_SPDIF)
+        rb->lcd_putsf(0, 1, "16bit %s", channel_str[reccfg.channels]);
+    else
+#endif
+        rb->lcd_putsf(0, 1, "%sHz 16bit %s",
+             samplerate_str[reccfg.samplerate], channel_str[reccfg.channels]);
+
     rb->lcd_update();
     
     mas = 0x0060                /* no framing, little endian */
@@ -3649,8 +3652,7 @@ static int record_file(char *filename)
             recording = false;
             saving = true;
         }
-        rb->snprintf(buf, sizeof(buf), "Bytes: %d", num_rec_bytes);
-        rb->lcd_puts(0, 2, buf);
+        rb->lcd_puts(0, 2, "Bytes: %d", num_rec_bytes);
         rb->lcd_update();
     }
     /* read sample rate from MAS */
diff --git a/apps/plugins/wavview.c b/apps/plugins/wavview.c
index ddf72e10af..25afa40901 100644
--- a/apps/plugins/wavview.c
+++ b/apps/plugins/wavview.c
@@ -109,7 +109,6 @@ static int readwavpeaks(const char *filename)
 
     int file;
     uint32_t total_bytes_read = 0;
-    char tstr[128];
     int hours;
     int minutes;
     int seconds;
@@ -156,25 +155,20 @@ static int readwavpeaks(const char *filename)
     rb->lcd_puts_scroll(0, 1, (unsigned char *)filename);
     rb->lcd_update();
 
-    rb->snprintf(tstr,127, "Channels: %s",
+    rb->lcd_putsf(0, 2, "Channels: %s",
                            header.numchannels == 1 ? "mono" : "stereo");
-    rb->lcd_puts(0, 2, tstr);
-
-    rb->snprintf(tstr,127, "Bits/sample: %d", header.bitspersample);
-    rb->lcd_puts(0, 3, tstr);
-
-    rb->snprintf(tstr,127, "Samplerate: %d Hz", (int)(header.samplerate));
-    rb->lcd_puts(0, 4, tstr);
+    rb->lcd_putsf(0, 3, "Bits/sample: %d", header.bitspersample);
+    rb->lcd_putsf(0, 4, "Samplerate: %"PRIu32" Hz", header.samplerate);
 
     seconds = header.datachunksize / header.byterate;
     hours = seconds / 3600;
     seconds -= hours * 3600;
     minutes = seconds / 60;
     seconds -= minutes * 60;
-    rb->snprintf(tstr,127, "Length (hh:mm:ss): %02d:%02d:%02d", hours,
-                                                                minutes,
-                                                                seconds);
-    rb->lcd_puts(0, 5, tstr);
+
+    rb->lcd_putsf(0, 5, "Length (hh:mm:ss): %02d:%02d:%02d", hours,
+                                                             minutes,
+                                                             seconds);
     rb->lcd_puts(0, 6, "Searching for peaks... ");
     rb->lcd_update();
 
@@ -246,10 +240,9 @@ static int readwavpeaks(const char *filename)
         }
 
         /* update progress */
-        rb->snprintf(tstr,127, "Searching for peaks... %d%%",(int)
+        rb->lcd_putsf(0, 6, "Searching for peaks... %"PRIu32"%%",
             (total_bytes_read / ((header.datachunksize +
                                  sizeof(struct wav_header)) / 100)));
-        rb->lcd_puts(0, 6, tstr);
         rb->lcd_update();
 
         /* allow user to abort */
diff --git a/apps/plugins/xobox.c b/apps/plugins/xobox.c
index 871cb2bdf5..e93a820b71 100644
--- a/apps/plugins/xobox.c
+++ b/apps/plugins/xobox.c
@@ -549,7 +549,7 @@ static int percentage (void)
 static void refresh_board (void)
 {
     int i, j;
-    char str[25];
+    int x;
 
 #if LCD_DEPTH>=2
     rb->lcd_set_background (LCD_BLACK);
@@ -590,21 +590,18 @@ static void refresh_board (void)
 #else
     rb->lcd_set_drawmode (DRMODE_COMPLEMENT);
 #endif
-    rb->snprintf (str, sizeof (str), "Level %d", player.level + 1);
-    rb->lcd_putsxy (BOARD_X, BOARD_Y, str);
-    rb->snprintf (str, sizeof (str), "%d%%", percentage_cache);
-    rb->lcd_putsxy (BOARD_X + CUBE_SIZE * BOARD_W - 24, BOARD_Y, str);
-    rb->snprintf (str, sizeof (str), "Score: %d", player.score);
-    rb->lcd_putsxy (BOARD_X, BOARD_Y + CUBE_SIZE * BOARD_H - 8, str);
-    rb->snprintf (str, sizeof (str),
-                 (player.lives != 1) ? "%d Lives" : "%d Life", player.lives);
+    rb->lcd_putsxyf (BOARD_X, BOARD_Y, "Level %d", player.level + 1);
+    rb->lcd_putsxyf (BOARD_X + CUBE_SIZE * BOARD_W - 24, BOARD_Y, "%d%%",
+                     percentage_cache);
+    rb->lcd_putsxyf (BOARD_X, BOARD_Y + CUBE_SIZE * BOARD_H - 8, "Score: %d",
+                    player.score);
 #if LCD_DEPTH>=2
-    rb->lcd_putsxy (BOARD_X + CUBE_SIZE * BOARD_W - 60,
-                    BOARD_Y + CUBE_SIZE * BOARD_H - 8, str);
+    x = BOARD_X + CUBE_SIZE * BOARD_W - 60;
 #else
-    rb->lcd_putsxy (BOARD_X + CUBE_SIZE * BOARD_W - 40,
-                    BOARD_Y + CUBE_SIZE * BOARD_H - 8, str);
+    x = BOARD_X + CUBE_SIZE * BOARD_W - 40;
 #endif
+    rb->lcd_putsxyf (x, BOARD_Y + CUBE_SIZE * BOARD_H - 8, 
+                 (player.lives != 1) ? "%d Lives" : "%d Life", player.lives);
 
 #if LCD_DEPTH>=2
     rb->lcd_set_foreground (PLR_COL);
diff --git a/apps/plugins/zxbox/zxvid_16bpp.c b/apps/plugins/zxbox/zxvid_16bpp.c
index 4a05c69f97..f213afe307 100644
--- a/apps/plugins/zxbox/zxvid_16bpp.c
+++ b/apps/plugins/zxbox/zxvid_16bpp.c
@@ -49,7 +49,6 @@ void init_spect_scr(void)
 
 void update_screen(void)
 {
-    char str[80];
     fb_data *frameb;
   
     int y=0;
@@ -88,10 +87,7 @@ void update_screen(void)
         int TPF = HZ/50;/* ticks per frame */
         if ((*rb->current_tick-start_time) > TPF )
             percent = 100*video_frames/((*rb->current_tick-start_time)/TPF);
-        rb->snprintf(str,sizeof(str),"%d %%",percent);
-        rb->lcd_putsxy(0,0,str);
+        rb->lcd_putsxyf(0,0,"%d %%",percent);
     }
     rb -> lcd_update();
 }
-
-
diff --git a/apps/plugins/zxbox/zxvid_2bpp.c b/apps/plugins/zxbox/zxvid_2bpp.c
index 0a4519e0ac..9f98ab4cfb 100644
--- a/apps/plugins/zxbox/zxvid_2bpp.c
+++ b/apps/plugins/zxbox/zxvid_2bpp.c
@@ -41,8 +41,6 @@ void init_spect_scr(void)
 }
 void update_screen(void)
 {
-    char str[80];
-
     fb_data *frameb;
     int y=0;
     int x=0;
@@ -106,8 +104,7 @@ void update_screen(void)
         int TPF = HZ/50;/* ticks per frame */
         if ((*rb->current_tick-start_time) > TPF )
             percent = 100*video_frames/((*rb->current_tick-start_time)/TPF);
-        rb->snprintf(str,sizeof(str),"%d %%",percent);
-        rb->lcd_putsxy(0,0,str);
+        rb->lcd_putsxyf(0,0,"%d %%",percent);
     }